Defend is a combination of zinc and elderberry delivered in a fast-melting lozenge with a delicious mixed berry flavor to support overall immune health.* Each lozenge provides 25 mg of zinc (as zinc gluconate combined with zinc citrate) and 100 mg of elderberry fruit (Sambucus nigra), and it has zero grams of sugar. The lozenge delivery system is ideal for targeted absorption and may help support the upper gastrointestinal tract (i.e., throat) and upper respiratory tract health.